References
- Calverley P, Pauwels R, Vestbo J et al. Combined salmeterol and fluticasone in the treatment of chronic obstructive pulmonary disease: a randomised controlled trial. Lancet361(9356), 449–456 (2003).
- Calverley PM, Anderson JA, Celli B et al. Salmeterol and fluticasone propionate and survival in chronic obstructive pulmonary disease. N. Engl. J. Med.356(8), 775–789 (2007).
- Vestbo J, Anderson JA, Calverley PM et al. Adherence to inhaled therapy, mortality and hospital admission in COPD. Thorax64(11), 939–943 (2009).
- Rand CS, Cowles MK, Wise RA, Connett J. Long-term metered-dose inhaler adherence in a clinical trial. The Lung Health Study Research Group. Am. J. Respir. Crit. Care Med.2(152), 580–588 (1995).